Flower vase



FIG. 1 is a perspective view showing the top, front and sides of a flower vase embodying the new design;

FIG. 2 description is a front elevational view thereof, the rear elevational view being a mirror image;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a flower vase, as shown and described. 